Transverse spin dependent azimuthal asymmetries at COMPASS
Transverse spin dependent azimuthal asymmetries at COMPASS
复制标题
COMPASS 处横向自旋相关的方位不对称性
DOI:
10.1088/1742-6596/295/1/012046
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
B. Parsamyan
中科院分区:
文献类型:
--
作者:
B. Parsamyan
In the semi-inclusive deep inelastic scattering of polarized leptons on a transversely polarized target eight target transverse spin-dependent azimuthal modulations are allowed. In the QCD parton model half of these asymmetries can be interpreted within the leading order approach and the other four are twist-three contributions. The first two leading twist asymmetries extracted by HERMES and COMPASS experiments are related: one to the transversity distribution and the Collins effect, the other to the Sivers distribution function. These results triggered a lot of interest in the past few years and allowed the first extractions of the transversity and the Sivers distribution functions of nucleon. The remaining six asymmetries were obtained by the COMPASS experiment using a 160 GeV/c longitudinally polarized muon beam and transversely polarized deuteron and proton targets. Here we review preliminary results from COMPASS proton data of 2007.
影响因子:
4.4
作者:
T. C. C. A. Alekseev-T.-C.-C.-A.-Alekseev-102393709;E. al.
通讯作者:
T. C. C. A. Alekseev-T.-C.-C.-A.-Alekseev-102393709;E. al.
影响因子:
8.6
作者:
The Hermes Collaboration
通讯作者:
The Hermes Collaboration
DOI:
--
发表时间:
2007
期刊:
Nuclear Physics B765
影响因子:
--
作者:
E. S. Ageev T. Iwata;T. Matsuda N. Horikawa and COMPASS collaboration
通讯作者:
T. Matsuda N. Horikawa and COMPASS collaboration